Spontaneous Ignition - A Litterature Study of Experimental Methods

30discussed above. Furthermore, it would be possible to use results from such tests forcomparison to simulations in development of mathematical models.A survey of the potential risk for spontaneous ignition in various wood stock storages inSweden is presented here. It is found that the largest risk for spontaneous ignition wouldbe in storages of moist biofuel. Storage of fuel with high moisture content gives suitableconditions for growth of bacteria and fungus that produces heat in the low temperatureregime. Heat produced from microorganisms is normally a prerequisite for attaining thetemperature regime where oxidative processes commence. The types of biofuels thatwould induce the highest risk for spontaneous ignition in storage, and that can be found inlarge quantities in storage, would be wood chips, sawdust and bark, if using moisturecontent as criteria. Dry refined wood fuels as pellets, briquettes and pulverized woodwould thus give a low risk for spontaneous ignition. There would, however, be a riskassociated even with these fuels if not stored properly, allowing the material to get moistinitiating microbial growth.